And paul riessner



(No Model.)

G. A. BRAGHHAUSEN & P. RIESSNER.

MUSIC BOX.

Patented June 27, 1893.

'INVE/VTORS A TTOHNE Y8.

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i to support said disk thereon.

UNITED STATES PATENT ()EETCE.

' GUSTAV A. BRACHHAUSEN, OF HOBOKEN, NE\V JERSEY, AND PAUL RIESSNER,

OF EUTRITZSOH, NEAR LEIPSIC, GERMANY.

MUSIC-BOX.

SPECIFICATION forming part of Letters Patent No. 500,371, dated June 27,1893.

Application filed December 19. 1892. Serial No. 455,591. (No model.)

To all whom it may concern:

Be it known that we, GUSTAV ADOLF BEACH- HAUsEN, residing at Hoboken, inthe county of Hudson and State of New Jersey, and PAUL 5RIEssNEmresiding at Eutritzsch, near Leipsic, in the Kingdom of Saxonyand German Empire, have invented certain new and useful Improvements inMusic-Boxes, of which the following is a full, clear, and exact de- [0scription, reference being had to the accompanying drawings, in which-Figure 1 is a top view of a portion of a music-box illustrating ourinvention. Fig. 2 is a vertical section on the line 2-2 of Fig. 1.

Figs. 8, 4 and 5 are enlarged detail views of portions of our improvedmusic-box.

Our invention relates to that class of music-boxes wherein disks orrotary noteplates are used to operate the vibrating tongues, and

consists in the novel arrangement and combination of parts hereinafterdescribed and specifically pointed out in the claims.

Heretofore in this class of instruments rotary note-plates or disks havebeen driven from a shaft located in the central portion thereof, whichshaft was operated by suitable mechanism. This was objectionable formany reasons; the motion imparted by the shaft located as abovedescribed was jerky and un- 0 steady, which is a serious disadvantage inthis character of devices; it required, in musicboxes built upon a largescale, that the power for rotating the disk be very great and it wasfound difficult to operate the disk to the 5 slight degree oftenrequired.

The object of our invention is to provide a simple device which withcomparatively little power will rotate the disk in a steady positivemanner and to the smallest degree when necessary.

In the drawings, Arepresents a music-plate or disk which is adapted toturn or rotate upon a suitable pin or pivot a and is removabletherefrom, the adjustable sleeve 2 acting At or near the outer edge ofthis music-plate, the same is provided with a series of apertures ordepressions 1) into which the teeth of a sprocketwheel 0 are adapted tofit, said sprocket-wheel being connected to and driven by a suitable 5otrain of gear.

d is a rod which carries loosely mounted friction-wheels c and is hingedat its outer end to a stationary support, as shown at f, and provided atthe inner end with a perforated enlargement h, which is able to fit overthe pin a, being locked to a notch in said pin by a latch g. \Vhen thuslocked the wheels 6 are above and in contact with the outer face of thedisk A.

hen it is desired to replace the note-plate A by another adapted to playdifferent tunes, it is merely necessary to unfasten the latch g, throwback the rod (Z on its hinge f, lift off the note-plate A, andsubstitute another, whereupon the rod (1 is refastened so that itsfriction-rollers Q will bear on the top of the note-plate A. Theserollers c prevent the note-plate from vibrating, and insure contactbetween the projecting pins 4; or actuating 7o edges thereon and thevibrating tongues j or the mechanism for vibrating them, the musicboxbeing then in condition to be operated. It will be seen that the rod dwith its rollers bears on that radius of the disk A which extends to thesprocket-wheel. In the same radius the disk affects the tongues j. Hencethe rod cl holds the disk steady where it plays and holds it on thesprocket-wheel. Should there be occasion for the use of series of suchrods (1, the same can readily be used.

Having described our invention, what we claim is- 1. In a music-box thecombination of the disk A, having apertures 19 near the outer edge 8 5and having playing edges 1', with the sprocketwheel 0 adapted to engagein said apertures Z), and means substantially as described for holdingthe disk down bypressure from above, substantially as and for thepurpose specified. 0

2. The combination of the disk A, means substantially as described forrotating said disk from the outer part thereof, rod cl andfriction-wheels c mounted thereon and adapted to bear upon the outerface of said disk A, substantially as described.

3. The combination of the disk A provided with apertures b near theouter edge t ereof,

sprocket-wheel 0 adapted to engage in said to bear upon said disk A,central pin a a1 apertures, central pin aand adjustable sleeve latch g,substantially as described.

2 for supporting said disk A, and upper bard GUSTAV A. BRAOHHAUSEN.having friction-wheels e, all arranged substan- PAUL RIESSNER. 5 tiallyas and for the purposes set forth. Witnesses to Gustav A. Braehhausen:

4. The combination of the diskA provided HARRY M. TURK, with apertures11 near the outer edge, with OTTO SCHRENK. sprocket-Wheel 0 adapted toengage in said Witnesses to Paul Riessner: apertures and rotate thedisk, hinged rod (1, CARL BORNGRABER,

I0 friction-wheels e hung thereon and adapted EMIL VOIGTLAENDER.

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